The Songs of Eirren Series by Edith Pattou

Collun has always been happiest working in his garden. But his peaceful life is shattered when his sister, Nessa, mysteriously disappears. He sets off to find her and soon realizes that he has become involved in something much larger and more sinister than he had imagined. With his traveling companions—a wizard, an aspiring bard, a fairy prince, and a feisty young woman on a quest of her own—Collun must face dangers both natural and magical in order to complete his mission... moreCollun has always been happiest working in his garden. But his peaceful life is shattered when his sister, Nessa, mysteriously disappears. He sets off to find her and soon realizes that he has become involved in something much larger and more sinister than he had imagined. With his traveling companions—a wizard, an aspiring bard, a fairy prince, and a feisty young woman on a quest of her own—Collun must face dangers both natural and magical in order to complete his mission. “The author spins a dramatic tale, infused with Irish myth and folklore, that fantasy fans will relish.” — Booklist less